<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="/style/arrow.css">
</head>
<body>
    <header>title</header>
    <content>
        <div class="box top">test-content</div>
        <div class="box right">test-content</div>
        <div class="box bottom">test-content</div>
        <div class="box left">test-content</div>
    </content>
    <footer>footer</footer>
</body>
</html>